Combined typewriting and computing machine



Aug. 7; I923.

hven/ar v Mflw 3 Sheets-Sheet 1 'III/ III II/ ll Filed Nov. 30,

B C STICKNEY COMBINED TYPEWRITING AND COMPUTING MACHINE Aug. 7, 1923.

B. c STICKNEY COMBINED TYPEWRITING AND COMPUTING MACHINE Filed Nov. 30,1921 5 Sheets-Sheet 3 5 3 W NE I 3 Sheets-Sheet 5 3. MN ooooooooo FiledNov. 30. 1921 ooooooooooooooooo o 0 B C STICKNEY COMBINED TYPEWRITINGAND COMPUTING MACHINE Aug. 7, 1923 Patented Aug. 7, 1923.

UNITEDSTATES PATENT OFFICE.

BUBNHLH C. S'I'IOKNEY, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO UNDEBWOODCOMPUTING KACHINECOIPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

COMBINED TYPEWRITING AND COMPUTING MACHINE;

1 Application filed November 80, 1921. Serial No. 518,810.

To all whom/it may concern:

Be it known that I, BURNHAM C. STICK- NEY, a citizen of the UnitedStates, residin in Elizabeth, in the county of Union an 5 State of NewJersey, have invented certain new and useful Improvements in Combined Tpewriting and Computing Machines, of which the following is aspecification.

This invention relates to combined typewriting and computing machines,and is herein illustrated as applied to a bookkeeping machine of theUnderwood-Hanson iii machines of the type referred to, depression of thenumeral keys efi'ects step -step movement of the carriage in a letter-feedin direction, and the carriage, in passing t rough a computingzone, acts through a suitable transposition mechanism to so positionseriatim denominational bars havin index-pins thereon as to permitdigits to %)e indexed in the different denominations in accordance withthe numeral keys depressed. The pin-setting mechanism is actuated eachtime a numeral key is depressed, but no indexing is effected unless adenominational or pin bar has been selected by the carriage cting throuh a suitable transposition mechanism. hen the 80 different digits of anumber have been in dexed as described, a general operator is actuatedto move the in-bars in accordance with the setting of the index-pins andthe corresponding number is added into the 3 re ister.

lhe main object of the present invention is to provide improvedtransposition mechanism, simple in construction and certain in action. 4According to the resent embodiment of the invention, the e ective pathof the de nomination-selector tappets is adjacent the rear ends of thepin-bars, and, as the movement of the tappet for each letter-space 4movement of the carriage may be determined as desired, independentactuation of the different pin-bars may be effected with greatercertainty than in the usual form of machine, in which the denominationaljacks are at letter-space distances apart and the supporting end of eachjack or dog is so small that great care must be taken to maintain theparts in close adjustment to insure correct operation.

The tappets or cam members are pivotally mounted on the selectors, sothat, when moved past the pin-bars in letter-feeding movement of thecarriage, movement of the tappets about their pivots will be preventedand the various pin-bars will be cammed forward in succession, but, whenthe carriage is moved in the opposite direction, the tappets, uponengagement with the ends of the pin-bars, will be swung about theirpivots to ineifective position and will pass idly the ends of thepin-bars. The selectors, with the tappets thereon, may be adjustablymounted on a continuous band, preferably of steel, which may be carriedby sprocketwheels, one at each side of the machlne, said sprocket-wheelshaving pins or teeth mounted thereon at regular intervals and projectingthrough suitable openings in the band as the latter is fed therearound.To drive the band, provision may be made of a pinion fixed to one of thesprocket-wheels and a rack mounted on the carriage and normally meshingwith the inion. It should be understood that the re ation between thediameters of the pinion and the associated sprocket-wheel is such that aletter-space movement of the carriage will effect a movement of a tappeton the lower stretch of the band sufiicient to carry it from effectiveengagement with one of the pin-bars to effective engagement with thenext.

To secure the selectors on the band, the latter is provided, atintervals corresponding to the distances between the rear ends ofsuccessive pin-bars, with perforations, and the selectors are providedwith slots to receive the band and with openings on the opposite sidesof the slot, which may be brought into register with one of theperforations in the band by engagement of wedge-shaped portions of theselectors with notches in the forward edge of the band. When placed inadjusted position, each selector may be secured to the band by a screwpassing through the aligned openings in the band and the selector.

To prevent improper displacement of the tappets when brought intoengagement with the pin-bars, provision may be made of guiding means tosu port both the lower stretch of the ban and the selectors thereon.

Provision may be made of more than one register, and, consequently, ofmore than one set of pin-bars. When this is the case, the rear ends ofthe different sets of pinbars are displaced vertically with reference toeach other, and the tappets are arranged at different heights on theselectors, so that each selector wlll engage only the pin-bars in thecorresponding set.

Provision may be made of a non-compute key at the front of the machineand of a device operable thereby to shift the ends of the pin-bars outof alignment with the tappets, so that no denomination selecting will beeffected when the carriage passes through a computing zone.

When the selectors are to be set in adjusted position on said band, thepinion connected with one of the sprocket-wheels is disconnected fromthe carriage and the portion of the band on which the selectors are tobe placed is brought into the upper stretch adjacent to a fixed scalewhich inclicates the distance at which the selectors for the differentsets of pin-bars are to be positioned. The band may be provided withmarkings corresponding to those on the usual letter-space scale toassist in positioning the selectors. When the selectors are suitablypositioned on the band, the latter is restored to its normal positionwith reference to the carriage and the connection between the carriageand band restored. To enable such connection and disconnection to beeffected, the rack may be hinged to the carriage to enable it to beswung out of position to mesh with the pinion with which it usuallyco-operates.

It will be seen that, according to the present invention, lost motion inthe transposition mechanism is to a great extent eliminated.

Other features and. advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a diagrammatic side elevation, partly in section, showingthe invention applied to an Underwood-Hanson bookkeeping machine.

Figure 2 is a front elevation of the transposition mechanism.

Figure 3 is a plan view of a portion of the mechanism shown in Figure 2.

Figure 4 is a detail view of a portion of the band carrying thedenominationselectors and of the scale-plate provided with markings toassist in obtaining the proper relative positions of selectors for usewith the different registers.

Depression of numeral keys l1 and alphabet keys 12 will actuatekey-levers 13 and bell-cranks 14 to swing type-bars 15 upwardly andrearwardly to effect typing, by means of types 16 thereon, on worksheetssupported on a platen 17. The platen 17 is mounted for rotation in aplaten-frame 18 mounted in a carriage 19 which is supported at its :rearfor movement 'transversely of the machine on a rail 20.

The carriage 19 is normally urged to the left by means, not shown, andis normally restrained from such movement by means of a rack 21connected to the carriage and meshing with a pinion 22 having a onewayconnection with an escapement wheel 23. As an actuated type-bar 15 nearsthe end of its effective stroke, the heel 24 there on will engage auniversal frame 25 and operate a rocker 26 carrying the usual fast andloose dogs 27 and 28, respectively, thereby permitting letter-feedingmovement of the escapement wheel 23 and consequently of the carriage 19.

Each time a numeral key is depressed to print a significant digit, a pinor link 29 connected therewith engages an arm 30 on a shaft 31 of a setcorresponding in number to the significant numeral keys and actuates alinkage 32 to ,depress a pin-setting bar 33 thereof. The index-pins 34,which are car ried by the denominational or pin-bars 35, are normallyout of alignment with the bars 33, and, except when a pin-bar isselected and advanced by the carriage by means to be describedhereinafter, none of the pins 34 will be set upon depression of the bars33. Upon completion of the indexing of a number, by depressing suitablepins 34 on the pin-bars of a set, a shaft 36 may be rotated in acounterclockwise direction, as seen in Figure 1, by means of a handle(not shown), and this motion may be transmitted, by means of toothedsectors 37, fixed on the shaft 36, to pinions 38, which mesh with racks39, forming parts of a general operator 40, thereby effecting forwardmovement of the latter.

In such forward movement of the general operator, a bar 41 thereon willengage the lower ends of depressed pins 34, and advance the pin-bars 35,in accordance with the pins depressed, and, consequently, in accordancewith the digits indexed. The pin-bars 35 have one-way drivingconnections with number-wheels 42, such connections including racks 43on the bars 35, and, upon forward movement of the bars 35, thenumber-wheels 42 will be turned in accordance with the digits indexed,the result of the operation being read through a sightopening 44 in acomputer-casing 45.

Provision may be made at the rear of the carriage ofrearwardly-extending arms 46, carrying a rack-bar 47, on which may beset. at letter-space intervals, tabulator-stops 48, with whichvertically-movable plungers or counter-stops 49 may cooperate whenraised by tabulator-keys Snot shown). The arms 46 may be extenderearwardly to support a portion of the transposition mechanism, throughwhich the denomination-select ng of the pin-bars 35 is effected.Provision may be made of hinge members 50, secured to the extension ofthe arms 46, by means of screws 51, and these hinge members 50 mayinclude hinge ins 52, around which extend rtions 53 0? a frame 54,having at its ower edge a rack 55. The rack 55 is normally in operativeengagement with a pinion 56, so as to drive the same durin move- Igagement with the ment of the carriage 19 in either direction. Thearrows on Fi re 2 indicate the direction of rotation 0 wheels 65 and 69during letter-feed movements of the carriage.

To maintain the rack 55 in effective enpinion- 56, provision may be madeof a fixed arm 57, extending downwardly at the end of the rack adjacentone end of the carriage, and this arm may be gagement with the pinion56, provision may opening 59 in the rack end is in alignment when therack is in effective position, this alignment bein maintained by a pin60 normally exten through said openings 58 and 59. The pin 60 maynormally be held-in efi'ective position by means of a leafspring 61engaging in a groove 62 of the pin 60, and the in 60 may be withdrawnfrom latching re ation by means of a head 63 thereon, the rack thenbeing released to enable movement thereof out of engagement with thepinion .56, for a. purpose to be described hereinafter. Upon movement ofthe rack out of eifective position and release of the head 63, the pin60 will return to normal position and prevent return of the rack 55 toeffective position.

The pinion 56 is fixed to a hub 64, to which is also fixed a toothedwheel or sprocket-wheel 65, having beveled teeth 66 engaging in openings67 in a continuous band 68, extending around the toothed wheel 65 at oneside of the typewriter-frame and a corresponding toothed wheel 69 at theother side of thetypewriter-frame. To support the hub 64, provision ismade of a boss 70 held on the typewriter-frame by suitable means, suchas screws 70, and a pin 71 is passed through the hub 64, a reducedporpin being fitted'into an opening in the boss 70 and secured thereinby means of a set-screw 73. At its outer end, the pin 71 is providedwith an enlarged head 74, which serves to retain the hub 64 on the pin,and a shoulder 75, formed between the main por tion of the pin 71 andits reduced rtion 72, is at a distance from the head 4 sufficient toreceive the hub 64, and to determine the proper position of the reducedportion 72 in the boss 70. The hub 64 of the wheel 69 may be supportedby a boss 70 fixed on the typewritenframe on the side opposite that onwhich the first-mentioned boss 70 is mounted.

It will be seen that the upper dareteh of the band 68 will move in thesame direction as the carnage when the rack 55 is in engement with thepinion 56, and that the ower stretch of the band moves in the oppositedirection. The selection of the pinbars 35 in the proper order may thenbe obtained by means of selectors 76, which, in

moving along the lower stretch, will cause tappets or dogs 77 thereon toengage rearward extension 78 of pin-bars 35, to advance the sameseriatim, to enablesetting of the pins 34'by means of the pin-setting11nk' ages. The dogs or tappets 77 inay be so mounted on the selectors76 that, in p the corresponding extensions 78 of the pinbars, as thecarriage moves in a letter-feeding direction, they will be maintained ineffective position on the selectors, but, when -moved in the oppositedirection past the extensions 78, they will yield, and no advancing ofthe extensions 78 will be effected. The tappets 77 may be mounted on theselectors 76 in substantially the same manner as the tappets are mountedin the selectors ordinarily in use in' the Underwood-Hanson boo pingmachines.

As herein disclosed, the machine is equipped with three registers, eachof which includes a set of the number-wheels 42. In order thatcomputations may be efiected independently in the different registers,the rearward extensions of the different sets of pin-bars 35 arearranged in difierent horizontal planes, as shown in Figure 1,-theextensions of the right-hand set being lower than those of the middleset, and the extensions of the middle set being lower than those of theleft-hand set. It will be evident that, by arranging the tapgets ondifferent selectors at the proper eights, the set of extensions 78 uponwhich each selector will be effective can be determined.

The extensions 78 of the in-bars' 35 may be guided near the rear en ofthe bodyportions of the pin-bars 35 b a slotted member 79. The bottomsof t e slots for the various extensions-7 8 may be positioned so thatthe extensions 78 will be's'upported thereby in the position shown inFigure 1. In order to prevent lateral deflection of the extensions 78when engaged by the tappets 77, each set of extensions 78 may be guidedin a slotted member 80 suitably supported on the rear of thecomputer-casing.

Each of-the selectors 76 may comprise a vertical portion in which atappet 77 is mounted and a horizontal portion or extension 7 6" having aslot 7 6 therein to receive the band 68. At the bottom of each of theslots 76 the selector may be provided with a beveled portion. 81 adaptedto seatitself in notches 82 in the forward edge III of the band 68,these notches being spaced at the same distance as the extensions 78 ofeach set of in-bars, which is the same as the length 0 step movement ofa selector for each letter-space movement of the carriage. The pin-bars35 are formed or spread out at their rear ends, and the pinion 56 is soroportioned with reference to the toothed wheels 65 and 69 that aselector on the band 68 will be moved the proper dlS- tance at eachletter-space movement of the carriage.

After positioning the selector 76 by means of a notch 82, the selectoris held in position by passing a screw 83 through an opening 84 in theband 68 and aligned openings on the opposite sides of the slot 76*, oneof said openings 84 being provided opposite each of the notches 82. Thescrew 83 is rovided with a knurled head 85 for mampulating the same, andis threaded into the selector preferably on the side of the slot 76opposite the head 85. It should be understood that the horizontalportion 7 6 of each selector 76 does not extend to the rear far enoughto interfere with passage of the band 68 around the toothed wheels 65and 69.

In order to insure proper positioning of the selectors as they arecarried past the extensions 78 of the pin-bars 35, provision is made ofsuitable guiding means for both the band 68 and the selectors. This maycomprise a guide 86 extending across the rear of the computer-casing andsupported by each of its ends on the latter by means of a bracket 87.The guide 86 is provided with a slot 88 to receive the horizontalportion of each of the selectors. Since the rear end of the selectorengages the rear end of the slot, rearward movement of the selector willbe prevented, and-since each of the extensions 76' is rectangular insection and of suflicient width, the rocking of the selector about theaxis of the horizontal portion 76 will be prevented. The guide 86 isalso provided with a slot 89 extending rearwardly from the slot 88, andof suitable size to receive the portion of the band lying to the rear ofthe portion which may be embraced by the selectors. It will be evidentthat by this arrangement proper positioning of' the tappets as they arecarried past the extensions 78 will be assured.

As hereinbefore described, by moving the rack 55 rearwardly out ofengagement with the pinion 56, the carriage may be disconnected from thetransposition mechanism. This manner of disconnection is utilized inconnection with setting the selectors 76 on the hand 68, the portion ofthe belt 68 on which the selector or selectors are to be set beingbrought into the upper stretch of the band extending between the toothedwheels 65 and 69, and the selectors set by means of the proper notchesin the band 68. If desired, the band 68 may be suppliedwith indicationsto assist in positioning the selectors.

If computation is to be effected in all of the registers simultaneously,the selectors for any two sets must be set a art a distancecorresponding to the distance etween corresponding extensions 78 of thecorresponding sets of pin-bars. This positioning may be convenientlyobtained by means of a scale 90 overlying the upper stretch of the bandcentrally of the machine and rovided with indications marked R1 2 and R3which correspond to the registers taken in order from left to right atthe front of the machine. As show in Figure 4, the selectors may bemarked with numerals'to indicate which one of the registers, numberedfrom left to right at the front of the machine, is to be actuatedthereby. The indications on the band corresponding to letter-spacepositions of the carriage are shown in Figure 4, and numberscorresponding to the letter-space positions are marked on the band. Tosupport the scale 90, provision may be made of a bracket 91 formed fromthe same piece of sheet-metal as the scale. The'bracket 91 may be bentupwardly from the rear of the scale and then forwardly to enable anupturned portion at the end of the forward extension to be sccured tothe tabulator bracket by means of a screw 92. After the selectors 76have been set on the band 68, the latter may be brought into properrelation with the carriage by bringing a mark on the band into alignmentwith a mark on the scale 90, and the rack 55 may be brought into meshwith the pinion 56.

Provision may also be made whereby, upon rearward movement of anon-compute key 93, the rearward extensions 78 of the pin-bars 35 willbe moved out of the path of the tappets 77. To this end, provision ismade of a rod 94 extending beneath the pin-bars 35 near the member 79,and supported by means of arms 95 fixed on a shaft 96. Upon rearwardmovement of the non-compute key 93, a link 97 fixed thereto and pivotedto the forward end of link 98 will move the latter rearwardly, and, bymeans of an arm 99 pivoted to the rear end of the link 98 and fixed onthe shaft 96, will rock the latter, thereby swinging the rod 94forwardly to lift the rear ends of the pin-bars 35 sufficiently to movethe extensions 78 out of the paths of the corresponding tappets. Whenthe non-compute key 93 reaches its rearward position, a pin 100,extending laterally from the link 98 and riding in the horizontalportion of a slot 101 in an adjacent member, will drop into the verticalportion 102 of the slot, and the non-compute key will be retained zonein its rearward position until the pin 100 claim:

1, In a combined typewriting and computing machine, in combination, atraveling carriage inthe upper part of the machine,

having a letter-feed movement from right to left, a register comprisinga set of numeral wheels, mechanism for operating said wheels, includinga series of denominational members arranged in descending order fromleft to right,'index devices on each of said members andcarriage-actuated means to shift said denominational members seriatim toenable setting of the index devices thereon, including a flexible bandguided in a straight line adjacent said members and moving past the samefrom left to right during a letter-feed movement of the caran actuatesai members as the carriage passes step-by-step through a computing 2.In a combined ty ewriting and computing machine, in com ination, atraveling carriage in the upper part of the machine,

having a letter-fee left, a register com wheels mechanism or operatingsaid wheels, including a series of denominational members arranged indescending orderfrom left to right, index devices on said members,carriage-actuated means to shift said denominational members seriatim toenable setting of the index devices thereon, includin a flexible bandguided in a straight line a jacent said members and -mov1ng past themovement from right to same from left to right during a letter feedmovement of the carriage, a ta pet on said band to engage and actuatesai members as the carriage passes step-by-step in a letterj feeddirection through a computing zone,

and non-compute means to move said denominational members outof theeffective path of'said tappet.

3. In a combined ty ewriting and comuting machine, in com ination,- acargiage irecaving letter-feed movements in one tion, a set of numberwheels, denominational bars b which actuation of said wheels is controled, a cam element adapted to actuate said bars seriatim when moved inthe reverse of the letter-feed direction, and carriage-actuated means tomove said element,

comprising a continuous band having one ria e, and a tappet on'said bandto engage rising a set of numeral stretch thereof adjacent the rear endsof sald bars, said cam element and said band having co-operating meanswhereby the cam element may be secured on said band at intervalscorresponding to the spacing of the denominational bars.

4. In a combined typewriting and computing machine, in combination, acarriage having letter-feed movements in one direct on, a set ofnumber-wheels, denominational bars by which actuation of said wheels iscontrolled, a cam element adapted to actuate said bars seriatim whenmoved in the reverse of the letter-feed direction, and carriage-actuatedmeans to move said cam element, comprising a continuous band having onestretch thereof adjacent the rear ends of said bars, said band havingrforations at intervals corresponding to t e distances between the rearends of said bars, said cam element havin a slotted portion to receivesaid band an openin in alignment on opposite sides of the s 0t, and asecuring member to pass through the openings in said cam element and oneof said perforations int'he band to hold said cam element in adjustedposition.

5. In a combined ty ewriting and computing machine, in com ination, acarria e having'a letter-feed movement in one irection, a set of numberwheels, denominational bars by which actuation of said wheels iscontrolled, a cam element adapted to ac- ,tuate said bars seriatim whenmoved in the reverse of the letterfeed direction, carriageactuated meansto move said cam element, comprising a continuous band having onestretch thereof adjacent the rear ends of said bars, said band havingperforations at intervals correspondin to the distances between the rearends 0 said bars, said cam element having a slot therein to receive saidband and openin in alignment on opposite sides of the ot,'and a securingmember to pass through the o nin in said cam element and one of saiorations in the band to hold said cam e ement in adjusted osition on theband, and guiding means $01 said band to insure the proper positioningthereof adjacent said bars.

6. In a combined, typewriting and comuting machine, in combination, acarriage aving a letter-feed movement in one direction, a set of numberwheels, denominational bars by which actuation of said wheels iscontrolled, a cam element ada ted to actuate said bars seriatimwhen'move in the reverse of the letter-feed direction, carriage-actuatedmeans to move said cam element, comprisin a continuous band having onestretch thereo adjacent the rear ends of said bars, said band havingperforations at intervals corresponding to the distances between therear endsof said bars, said camelement having a slot therein to receivesaid band and openings in alignment on opposite sides of the slot, and asecuring member to pass through the open ings in said cam element andone of said perforations in the band to hold said cam element inadjusted position on the band, and guiding means for said band to insurethe proper positioning thereof adjacent said bars, and also for said camelement to assist in holding the same in proper position relative tosaid denominational bars.

7. In a. combined typewriting and computing machine, in combination, atypewriter carriage, a register numeral wheels, actuating means for saidwheels including denominational elements actuable in accordance withdigits indexed thereon, a tappet to select the denominational elementsseriatim and shift them to positions to receive such indexing, and a.transposition device comprising an endless band having an upper stretchmoving in the letter-feed direction and a lower stretch.

' said denominational elements.

8. In a combined typewriting and computing machine, in combination, atypewriter carriage a register comprising numeral wheels, actuatingmeans for said wheels including denominational elements actuable inaccordance with digits indexed thereon, a tappet to select the denominational elements seriatim and shift them to positions to receive theindexing of digits, and a transposition device comprising an endlessband having a lower stretch adjacent said denominational elements andmoving in the reverse of the letter-feed direction, bandcarrying wheelshaving projections entering openings in the band, and a drivingconnection between said carriage and one of said wheels.

9. In a combined 'typewriting and computing machine, in combination, atypewriter carriage, a register comprising numeral wheels. actuatingmeans for said wheels including denominational elements actuable inaccordance with digits indexed thereon, a tappet to select thedenominational elements seriatim and shift them to positions to receivethe indexin of digits, and

band having a lower stretch a 'acent said denominational elements andmoving in the reverse of the letter-feed direction, bandcarrying wheelshaving projections entering openings in the band, and a drivingconnection between said carria and one of said wheels, including apinion fixed to the wheel and a rack attached to the carriage and meshinwith the pinion.

10. n a combined typewriting and computing machine, in combination, acarriage, denominational devices on which digits may be indexed, andselectin means for determining the devices on which digits are to be atransposition device compnsing an endless comprising be indexed,including a tappet to co-operate with said devices, a selector block tocarr said tappet, a band on which said bloc may be set at intervalscorresponding to the distances between said devices, said band havingnotches at intervals correspending to the distances between saiddevices, and said block having a portion to co- 0 rate with said notchesin properly positioning the block, and means to secure said block inadjusted position on said band.

, 12. In a combined typewriting and computing machine, in combination, acarriage, denominational devices on which digits may be indexed, anddenomination-selecting means to co-operate with said devices, comprisinga selector to engage said devices, and transposition mechanism includingan endless band on which said selector may be set at regular intervalscorresponding to the spacing of said denominational devices, said bandhaving a lower stretch along which the selector is moved to co-operatewith saiddeviccs and an upper stretch to which any point of the band isbrought when the selector is to be positioned thereat. 13. In a combinedt ewriting and computing machine, in com ination, a carriage,denominational devices on which digits may be indexed,denomination-selecting means to co-operate with said devices, comprisinga selector to engage said devices, trans tion mechanism including anendless and on which said selector may be set at regular intervalscorresponding tothe s acing of said denominational devices, said andhaving a lower stretch along which the selector is moved to co-opera'teowith said devices and an upper stretch to which any point of the band isbrought when the selector is to be positioned thereat, and a scaleadjacent I the upper stretch of said band to assist in positioning theselector with reference to the carriage.

14. In a combined typewriting and computing machine, in combination, a.carriage, a plurality of sets of denominational devices on which digitsmay be indexed, denomination-selecting means to co-operate with saiddevices, comprising selectors to engage respectively the devices of thedif-' ferent sets, transposition mechanism includmg an endless band onwhich said selectors may be set at intervals corresponding to thespacing of said denominational devices,

said band having a lower stretch along which the selectors are moved toco- I positions of the diflerent selectors when denomination selectingis to be effected for all the sets of devices simultaneously.

15. In a combined typewriting and computing machine, in combination, atraveling carriage, a series of reciprocable denominational bars,transposition mechanism comprising a cam member mounted for movementpast said bars in a path parallel to that of the carriage to engagesaid' bars seriatim in a direction reverse of that of the carriage, saidcam member being so shaped that in its movement in such reversedirection it will engage each of the bars and cam the same into aselected position, earriage-actuated means for moving said cam member insuch reverse direction, and means for shifting the ends of the barsadjacent said cam member out of alignment therewith.

16. In a combined typewriting and computing machine, in combination, atraveling carriage, a series of reciprocal denominational bars,transposition mechanism comprising a cam member mounted for movementpast said bars in a path parallel thereby shifting the adjacent ends ofthe bars out of alignment with said cam member.

17. In a combined typewriting and computing machine, in combination, atypewriter including a carriage, a computer casing on which saidtypewriter rests, a set of number wheels in the front part of saidcasing, denominational bars having sets of index-pins thereon, eachhaving a one-way connection with the corresponding number wheel, meansfor indexing digits on said pins in accordance with digits typed, meansfor selecting the bars on which indexing is to be effected, comprising acam member movable in the reverse of the letter-feed movement to engagesaid bars seriatim and advance them to indexing position, a rodextending transversely beneath said bars near their rear ends, anon-compute key at the front of said casing, and means whereby actuationof said key will effect a lifting of said rod and movement of the rearends of said bars out of alignment with said ,cam member.

18. In a combined typewriting and computing machine, in combination, acarriage,

numeral keys, numeral-key-actuated indexing devices, a plurality of setsof numberwheels, a set of denominational bars for each set of wheels,having an operative connection at their forwards ends with saidnumber-wheels, the rear ends of the bars of the difi'erent sets lying indifferent horizontal planes, indexing pins on said bars and normally outof alignment with said indexing devices, denomination-selecting means toactuate the bars seriatim to enable the pins to be set, includingselectors movable past the rear ends of the bars from left to rightduring the letter-feed movement of the carriage and tappets arranged onsaid selectors at heights corresponding to the heights of the rear endsof the bars of the different sets, and means to destroy the alignmentbetween the tappets and the rear ends of the corresponding sets ofdenominational bars.

19. In a combined typewriting and computing machine, in combination, acarriage, numeral keys, numeral-ke -actuatedindexing devices, aplurality 0 sets of numberwheels, a set of denominational bars for eachset of wheels, having an operative connection at their forward ends withsaid number-wheels, the rear ends of the bars of the diflerentsets lyingin different horizontal planes, indexing pins on said bars and normallyout of alignment with said indexing devices, denomination-selectingmeans to actuate the bars seriatim to enable the pins to be set,includin selectors movable past the rear ends of the ars from left toright during the letter-feed movement of the carriage and tappetsarranged on said selectors at heights corresponding to the heights ofthe rear ends of the bars of the difierent sets, and means to shift therear ends of the bars vertically out of alignment with the paths of thetappets 20. In a combined typewriting and computing machine, incombination; a carriage, numeral keys, numeral-key-actuated index ingdevices, a plurality of sets of number wheels, a set of denominationalbars for each set of wheels, having an operative connection at theirforward ends with said number-wheels, the rear ends of the bars of thedifferent sets lying in different horizontal planes, indexing pins onsaid bars and normally out of alignment with said indexing devices,denomination-selecting means to actuate the bars seriatim to enable thepins to be set, including selectors movable past the rear ends of thebars from left to right during the letter-feed movement of the carriageand tappets arranged on toosaid selectors at heights correspondin to theheights of the rear ends of the ars of the different sets, a deviceadapted to lift the rear ends of all of said bars substantiallysimultaneously, and a manually-open able means for actuating saiddevice.

21. In a combined typewriting and computing machine, in combination, atypewriter carriage, denominational elements, and carria e-actuateddenomination-selecting means or actuating said denomination- :11elements seriatim in the reverse of the letter-feed direction,comprising a selector to engage said elements, a carrier on which theselector may be set at intervals corresponding to the letter-spacemovements of the carriage, and a connection between the carriage and thecarrier, disconnectible at will to enable the carrier to be moved to asuitable position to permit the selector to be set thereon as desired.

22. In a combined typewriting and computing machine, in combination, atypewriter carriage, a register comprising numeral wheels, actuatingmeans for said wheels, including denominational elements actuable inaccordance with digits indexed thereon, a tappetto select thedenominational elements seriatim and shift them to positions to receivethe indexing of digits, a transposition device comprising an endlessband having a lower stretch adjacent said denominational elements, andmoving in the reverse of the direction of the carriage movement,band-carrying wheels, a driving connection between said carriage and oneof said wheels, including a pinion fixed to the wheel and a rackattached to the carriage and normally meshing with the pinion, and meansto disconnect said rack and pinion.

23. In a combined typewriting and com puting machine, in combination, atypewriter carriage, a register comprising numeral wheels, actuatingmeans for said wheels, including denominational elements actuable inaccordance with digits indexed thereon, a tappet to select thedenominational elements seri-atim and shift them to positions to receivethe indexing of digits, and a transposition device comprising a pinionand a rack shiftable on said carriage into and out of mesh with saidpinion.

BURNHAM C. STICKNEY.

Witnesses:

Enrrn B. Lmnnr, CATHERINE A. NEWELL.

